MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c0b4439cde81dd4284542c6366b55b69f76ffdf8c9b6fdf18e7dbdc80302738b
MD507c30f5bc3d6eea1ac64f39e808a4736
File Typejs
Size29.0 KB
First Seen2026-06-23
File Name30,000$ ORDER.js
Tagsjs, MassLogger

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: c0b4439cde81dd4284542c6366b55b69f76ffdf8c9b6fdf18e7dbdc80302738b
  • MD5: 07c30f5bc3d6eea1ac64f39e808a4736

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: c0b4439cde81dd42"
        threat_level = "medium"
        first_seen = "2026-06-23"
    condition:
        hash.sha256(0, filesize) == "c0b4439cde81dd4284542c6366b55b69f76ffdf8c9b6fdf18e7dbdc80302738b"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 c0b4439cde81dd4284542c6366b55b69f76ffdf8c9b6fdf18e7dbdc80302738b # MD5 07c30f5bc3d6eea1ac64f39e808a4736
TypeValueNote
sha256 c0b4439cde81dd4284542c6366b55b69f76ffdf8c9b6fdf18e7dbdc80302738b Sample:MassLogger
md5 07c30f5bc3d6eea1ac64f39e808a4736 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi